Abstract
Abstract Al-4.5 wt% Cu alloy deposit was produced through spray forming process for the spray height of 400 mm. The atomization and deposition process was carried out under (nitrogen) inert gas atmosphere. Microstructure of the spray deposit was studied from centre of the deposit to the peripheral region of the deposit. Densities of the sample at 3 different locations from the centre are 2.42, 2.38 and 2.25 g/cc. The grain size of the spray deposit is measured by using are found to be 29, 24, 20 μm at 3 different locations a, b and c from the centre of the deposit. The percentage of porosity is measured from the image analysis. The percentage of porosity at 3 different locations a, b & c were found to be increased by 3, 6 and 12% respectively. The Vickers hardness of the spray formed samples for 3 different locations was 446, 462 and 478 MPa.
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